Staple.



J. N. HAHN.

STAPLE. y

APPLIOATION FILED APE. 6, 1909.

Yatented Mar. 8, 1910.

JOHN N. HAHN, OF CLEVELAND, OHIO.

STAPLE.

speeication of Letters Patent.

Application le April 6, 1909. Serial No. 488,300.

To all whom it may concern:

Be it known that I, JOHN N. HAHN, a citizen of the United States,residing at Cleveland, in the county of Cuyahoga and State of Ohio, haveinvented certain new and useful Improvements in Staples, of which thefollowing is a specification.

My invention relates to improvements in staples, all substantially asshown and described and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a perspective view of my newand improved staple. Fig. 2 is a plan view thereof, and Fig. 3 is an endview. Fig.4 is a side elevation and Fig. 5 is a cross section thereof.Fig. 6 is an enlarged-sectional elevation of the staple centrallylengthwise through the prongs and shown inserted in a double fold orlayer of stock which the staple is adapted to lock together ashereinafter fully described.

As thus shown the staple is formed up in suitable dies from a sheet orstrip of suitable sheet metal, such as a heavy grade ofl fixed togetherby some means or other for i handling and shipping. The said flaps beingfolded inward from the sides one upon the other, they are secured by twoor more t staples fixed in each bottom. Thus, in Fig. y 6' the stockshown represents a portion of a 1 paste-board box bottom in which theHap i 2 is inside the box and liaps 3 outside thereof, and staple S isinserted from the outside g across the meeting line of the outer flapsand through the corresponding inner flap. The other staple in the bottomwould engage through the other inner flap not shown but like the oneshown, and then by bending and clenching the ends of the prongs 4 fiatagainst the inside of the bottom thel work is done so far as the staplesare concerned. However, as to this matter of securin the flaps, itshould vbe known that heretofore the practice has been to simply pasteor cement the flaps together and there was no other fastening means. Butpaste alone put of which these boxes are manufactured 1s stiff or rigidlike a wooden board, and when moistened for pasting is liable to war orcurl and to thus render the paste me ective. Hence the necessity ofmeans for locking the stock or flaps together other than the pastealone, and which according to my-invention supplements the paste orcement. That is, I employ the paste as formerly, which helps to make asealed bottom for finely divided or pulverized goods and preventscreeping or leaking between folds, and apply the staples in additionafter pasting and folding the flaps. This not only locks the flapsfirmly together but prevents their separating as they do otherwise whilethe paste is setting. The staples therefore serve at least a two-foldpurpose and contribute to make a parcel which will sustain the weight ofthe contents without any danger whatever that the bottom will give waywhen the parcel is handled.

.Now, as to the construction of the staple itself, it will be seen thatit is original in several particulars. Thus, the back has a relativelydeep raised rib 5 lengthwise thereof but terminating in this instanceshort of the base of said prongs and which are shown as having each arib or bead 6 on the inside and starting with the greatest depthin thebody of the staple at the ends of bead or rib 5 and within the ends ofsaid body. This throws a distinct depression 8 in the outside of thestaple at the junction of the prong and. body and which runs down on theoutside of the prong in a taper approxi` Q ribs 6 in said prongs isdetermined by the thickness of the stock to be secured whether it berelatively'greater or less thanherein shown. v

In view of the foregoing it will be seen resented Mae. s, 1ero.

that my improved staple is especially adapted to fasten paste-board,especially corrugated board, without breaking down or tearl ing thepaper lining or body laterally therehas been found insufhcient becausethe stock l of, because the flat ends l of the prongs are lari 951,393

easily bent Without bowing, kinking or bend# `ing that portion of theprongs `which lies Within the body of the stock.

What I claim is:

1. A staple formed up from sheet metal and having a rib locatedcentrally lengthwise outside on its back and prongs with ribs on theirinside starting in the ends of the said ribon the back of the staple andterminating in a taper substantially at the middle of the prongs.

2. A staple having a raised rib in its back terminating within the endsof the back and provided with prongs having tapered ribs on their insidestarting with their greatest depth at the base of said rib on the backand tapered thence. to about the middle of the prongs lengthwise, theportions of said prongs below said ribs being Hat and adapted to be bentto clenching position.

3. A staple having a remorcing rib ontside on its back and prongs havingribs inside gradually reducedfin cross section from end to end andextending from the ends of said rib in the back of the staple toapproxmately the middle of said prongs and said back having straightflat sides parallel to the rib therein.

. In-testimony whereof I ahx my signature 1n presence of two Witnesses.

. J CHN N. HAHN.

Witnesses:

E. M. FISHER, H. T. FISHER.

